It's not dollars, it's Syls.
Oh yes, I just assumed its a 1 to 1 conversion anyway. And the dollar sign is always there
It's 7 Syl for each 1 USD. The biggest giveaway here is that a room costs 5 Syls a day, which is 35 USD. Multiplied by 30 (for each day in a month) and that comes out to $1,050. About the price of a cheap apartment in a rural area.
This means the cat's bill was $1,225 USD.